Home / 1,411.49-2,117.25-1,324.94

Finding the Fourth Proportional to 1,411.49, 2,117.25 and 1,324.94

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Solution

The fourth proportional to 1,411.49, 2,117.25 and 1,324.94 is: 1,987.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,411.49 : 2,117.25 = 1,324.94 : x
  2. Step 2: Convert to fraction form
    1,411.49/2,117.25 = 1,324.94/x
  3. Step 3: Cross multiply
    1,411.49x = 2,117.25 × 1,324.94
  4. Step 4: Simplify right side
    1,411.49x = 2,805,218.63
  5. Step 5: Solve for x
    x = 2,805,218.63/1,411.49
  6. Step 6: Final answer
    x = 1,987.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.